Vulnerabilities > CVE-2018-19432 - NULL Pointer Dereference vulnerability in multiple products

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(132609);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/01");

  script_cve_id(
    "CVE-2017-14634",
    "CVE-2017-17456",
    "CVE-2017-17457",
    "CVE-2018-19432",
    "CVE-2018-19661",
    "CVE-2018-19758"
  );

  script_name(english:"EulerOS 2.0 SP8 : libsndfile (EulerOS-SA-2020-1016)");
  script_summary(english:"Checks the rpm output for the updated packages.");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing multiple security updates.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the libsndfile packages installed, the
EulerOS installation on the remote host is affected by the following
vulnerabilities :

  - The function d2ulaw_array() in ulaw.c of libsndfile
    1.0.29pre1 may lead to a remote DoS attack (SEGV on
    unknown address 0x000000000000), a different
    vulnerability than CVE-2017-14246.(CVE-2017-17457)

  - The function d2alaw_array() in alaw.c of libsndfile
    1.0.29pre1 may lead to a remote DoS attack (SEGV on
    unknown address 0x000000000000), a different
    vulnerability than CVE-2017-14245.(CVE-2017-17456)

  - In libsndfile 1.0.28, a divide-by-zero error exists in
    the function double64_init() in double64.c, which may
    lead to DoS when playing a crafted audio
    file.(CVE-2017-14634)

  - There is a heap-based buffer over-read at wav.c in
    wav_write_header in libsndfile 1.0.28 that will cause a
    denial of service.(CVE-2018-19758)

  - An issue was discovered in libsndfile 1.0.28. There is
    a buffer over-read in the function i2ulaw_array in
    ulaw.c that will lead to a denial of
    service.(CVE-2018-19661)

  - An issue was discovered in libsndfile 1.0.28. There is
    a NULL pointer dereference in the function sf_write_int
    in sndfile.c, which will lead to a denial of
    service.(CVE-2018-19432)

Note that Tenable Network Security has extracted the preceding
description block directly from the EulerOS security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
  # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2020-1016
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5238d465");
  script_set_attribute(attribute:"solution", value:
"Update the affected libsndfile packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"patch_publication_date", value:"2020/01/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/01/02");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libsndfile");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libsndfile-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Huawei Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp");
  script_exclude_keys("Host/EulerOS/uvp_version");

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

release = get_kb_item("Host/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0");

sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(8)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP8");

uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP8", "EulerOS UVP " + uvp);

if (!get_kb_item("Host/EulerOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);

flag = 0;

pkgs = ["libsndfile-1.0.28-9.h5.eulerosv2r8",
        "libsndfile-devel-1.0.28-9.h5.eulerosv2r8"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"8", reference:pkg)) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "libsndfile");
}